package com.allen.controller;

import com.allen.bean.Category;
import com.allen.common.R;
import com.allen.service.CategoryService;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * 分类管理
 *
 * @author dragon1006xu@gmail.com
 * @create 2022/2/17 16:41
 */
@RestController
@Slf4j
@RequestMapping("/category")
public class CategoryController {
    @Autowired
    CategoryService categoryService;

    /**
     * 新增分类
     *
     * @param category
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody Category category) {
        log.info("category:{}", category);
        categoryService.save(category);
        return R.success("新增分类成功");
    }

    /**
     * 分页查询
     *
     * @param page
     * @param pageSize
     * @return
     */
    @GetMapping("/page")
    public R<Page<Category>> page(Integer page, Integer pageSize) {
        //分页构造器
        Page<Category> pageInfo = new Page<>(page, pageSize);
        //条件构造器
        LambdaQueryWrapper<Category> lambdaQueryWrapper = new LambdaQueryWrapper<>();
        //添加排序条件，根据sort进行排序
        lambdaQueryWrapper.orderByAsc(Category::getSort);
        //分页查询
        categoryService.page(pageInfo, lambdaQueryWrapper);
        return R.success(pageInfo);
    }

    /**
     * 根据id删除分类
     *
     * @param id
     * @return
     */
    @DeleteMapping("/{id}")
    public R<String> delete(@PathVariable Long id) {
        log.info("删除分类，id为：{}", id);
        //categoryService.removeById(id);
        categoryService.remove(id);
        return R.success("删除成功");
    }

    //修改分类
    @PutMapping
    public R<String> update(@RequestBody Category category) {
        categoryService.updateById(category);
        return R.success("修改分类信息成功！");

    }

    @GetMapping("/list")
    public R<List<Category>> getByType(Integer type) {
        //设置查询条件
        LambdaQueryWrapper<Category> categoryLambdaQueryWrapper = new LambdaQueryWrapper<>();
        categoryLambdaQueryWrapper.eq(type!=null,Category::getType,type);
        //执行查询
        List<Category> list = categoryService.list(categoryLambdaQueryWrapper);
        //3.封装查询结果返回
        return R.success(list);
    }
}
